[1] Dana Farber Canc Inst, Dept Psychosocial Oncol & Palliat Care, 450 Brookline Ave,LW670, Boston, MA 02115 USA
[2] Duke Univ, Sch Med, Dept Med, Durham, NC 27706 USA
[3] Med Univ South Carolina, Dept Publ Hlth Sci, Charleston, SC 29425 USA
[4] Brigham & Womens Hosp, Dept Med, 75 Francis St, Boston, MA 02115 USA
[5] Med Univ South Carolina, Dept Med, Charleston, SC 29425 USA